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histogram [2012/09/13 23:40] hermann |
histogram [2012/09/14 23:02] (current) |
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- | ===== Histogram ===== | + | ====== Histogram Editor ====== |
- | The histogram window is responsible for assigning transformations from image original values (in any range) to | + | The histogram window is responsible for assigning transformations from image original values (in any range) to palette range [0, 255]. The histogram curve will adjust any value smaller than the "From:" limit to 0, and any value greater than the "To:" limit to 255. Any other values will be mapped using the histogram curve to the "Y" coordinate on the color palette on the left. |
- | palette range [0, 255]. The histogram curve will adjust any value smaller than the "From:" limit to 0, and any | + | |
- | value greater than the "To:" limit to 255. Any other values will be mapped using the histogram curve to the "Y" | + | |
- | coordinate on the color palette on the left. | + | |
- | {{ :map_viewer:histogram.png?nolink& |}} | + | [{{ :map_viewer:histogram.png?nolink& |Histogram editor}}] |
- | ==== Transformations ==== | + | ===== Transformations ===== |
- | * The default transformation doesn't map any values, leaving cell values "as is". | + | |
- | * Linear transformation will map linearly any values between the "from" and "to" ranges. | + | * **None**: The default transformation doesn't map any values, leaving cell values "as is". |
- | * Equalize will construct a curve based on [[http://en.wikipedia.org/wiki/Equalization|Equalization]] | + | |
+ | * **Linear**: This transformation will map linearly any values between the "from" and "to" ranges. | ||
+ | |||
+ | * **Equalize**: This transformation will construct a curve based on [[wp>Equalization]]. |